Yeah, those were injection molded and to reproduce the effect you have
to have two colours of tiny pellets in the mix and then they swirl
together during the injection process - no two items are the same, but
the ration of colours should be fairly consistent.
So, you need several things - a mold, which probably costs a few
thousand dollars, and injection mold machine, they start around $1500
and go straight up, and some practice.
Oddly enough I have the small injection mold machine and I am starting
to practice on ALI drop targets (Delrin/nylon), but unless someone is
willing to spring for the mold I doubt these marbleized posts are going
to made anytime soon...
(Please post followups or tech inquiries to the USENET newsgroup)
John's Jukes Ltd.
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